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Quadratic equation and nature of roots

What can you say about the roots of the following quadratic equation?

Markatu zure erantzuna hemen
  • A
  • B
  • C
  • D
  • E
  • F
Check my answer (3)

Markatu zure erantzuna hemen
  • A
  • B
  • C
  • D
  • E
  • F
Check my answer (3)

Markatu zure erantzuna hemen
  • A
  • B
  • C
  • D
  • E
  • F
Check my answer (3)

Markatu zure erantzuna hemen
  • A
  • B
  • C
  • D
  • E
  • F
Check my answer (3)

Can you construct a quadratic equation with integral coefficient whose roots are irrational and repeated?